This report, which is based on an invited presentation given at the 2015 meeting of the Association of Test Publishers, is a response to the continuing proliferation of scale linking studies that have occurred since the publication of "Uncommon Measures" in 1999.The report has four parts. First, I restate the conclusions made in…

Testing programs are often classified as high or low stakes to indicate how stringently they need to be evaluated. However, in practice, this classification falls short. A high-stakes label is taken to imply that all indicators of measurement quality must meet high standards; whereas a low-stakes label is taken to imply the opposite. This approach…

Best linear prediction (BLP) and penalized best linear prediction (PBLP) are techniques for combining sources of information to produce task scores, section scores, and composite test scores. The report examines issues to consider in operational implementation of BLP and PBLP in testing programs administered by ETS [Educational Testing Service].